VMS Help CC, Run-time functions, [w]insertln  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Curses Screen Management function and macro that insert a line
  above the line containing the current cusor position.  The insertln
  macro acts on the stdscr window.

  Syntax:

       #include <curses.h>

       int insertln();
       int winsertln(WINDOW *win);